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Last Tuesday, a friend called us asking if we could help him check one Lync Environment, because on a Front End server the Lync service wouldn't start. This particular environment was familiar to us since we were part of the team that deployed it, so we knew it has only two Front End Servers. Even … Continue reading Lync Server 2013: Event 32169 LS User Services and Event 36870 Schannel
Recently, I received an e-mail from GoDaddy asking to renew older certificates which were signed using SHA-1 algorithm because: Google® is making a shift in their Chrome™ Web browser to phase out any SSL certificates which use an old encryption algorithm (SHA-1) and expire after Dec. 31, 2015 By default, all new or recently renewed certificates … Continue reading Certificate re-key to change signature algorithm in Lync Server (SHA-1 to SHA-2)
Update 2016/04/01 - To avoid Missed call notifications check Missed call notification when the call is blocked by CallerIDBlock MSPL Script Last week a customer asked how we can block calls in Lync Server. After some searching, I found the following post: VoIPNorm's UC Blog - Blocking Calls in Lync Based on Caller ID Unfortunately, the comments refer … Continue reading Blocking Calls on Lync Server and Skype for Business Based on Caller ID
The point of this post is to help those that can't have 2 NIC on 2 separated not routable subnets. I have already encountered some customers whose security team stated that it was technically impossible to deploy an additional subnet on their current security/network infrastructure. Many of you know that Lync Edge Requirements have the following … Continue reading Lync/SfB Edge Server on a single subnet
Last week a customer asked me to check his Lync Server 2013. Everything was working, but there were some Event 1034, LS File Transfer Agent Service errors in the Event Viewer: Event 1034, LS File Transfer Agent Service Microsoft Lync Server 2013, File Transfer Agent service encountered an error while accessing a file share and will … Continue reading Lync Server 2013: Event 1034, LS File Transfer Agent Service
Recently, someone asked me if I could check his PIN. Usually, I instruct the user to change his PIN in the Dialin Web Page, but in this case, since Lync Control Panel was already open, I check the PIN Status: Request failed with error No available Servers to connect to: The only error was managing … Continue reading “No available Servers to connect to” when trying to view user PIN status.
One of the features that Lync Server and Skype for Business Server has and customers like is the ability to federate with another company. This post will focus only on Lync/SfB to Lync/SfB or Lync/SfB to OCS federation. Usually, Lync/SfB administrators don't know if they have an open or closed federation – why is that so? Because … Continue reading Difference between Open and Closed Federation in Lync/SfB Server
New stuff has been added to Lync Server 2013 but some things aren't visible right away. On the Lync administrator side the interface didn't change much – Control Panel and Topology are almost the same, and PowerShell is still black. "Under the hood", we will find out that things are quite different – new settings, new … Continue reading EnableFastFailoverTimer in Lync Server 2013 Trunk Configuration
Update 2017/05/29 - Added Skype for Business Server 2015 and SQL Server 2014 reference. The hardware requirements in Lync Server 2013/Skype for Business Server 2015 have increased since the previous version, which makes sense since now Audio/Video Conferencing, Monitoring and Archiving roles can be collocated in the Front End. As a result, more CPU and RAM … Continue reading CPU (Socket/No. of Core) Considerations in Lync Server 2013/Skype for Business Server 2015